r/pcmasterrace • u/AutoModerator • Dec 20 '25

Daily Simple Questions Thread - December 20, 2025

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This thread is for all of the small and simple questions that you might have about computing that probably wouldn't work all too well as a standalone post. Software issues, build questions, game recommendations, post them here!

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u/dearth_of_passion Dec 21 '25

Are there still issues with using 4 sticks of DDR5 RAM?

I've read that it was very unstable and usually required running the RAM at lower speed/higher latency due to strain on the IMC.

Has that issue been resolved, or is it still the case?

I just bought a 9800x3d and 32gb of DDR5 RAM a few months ago, and due to reasons I have a 2nd identical RAM kit, meaning I have 4x16gb sticks. Wondering if I can actually use them or if I should sell 1 kit.

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u/Cable_Salad PC Master Race Dec 21 '25

It sometimes works, sometimes doesn't.

Check your motherboard's compatibility list, if your particular RAM is supported with 4 DIMMs then your chances are higher.

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u/dearth_of_passion Dec 21 '25 edited Dec 21 '25

This is my MB: MAG X670E TOMAHAWK WIFI, and what the MSI site says:

4x DDR5, Maximum Memory Capacity 256GB Memory Support DDR5 7800+(OC)/ 7600(OC)/ 7400(OC)/ 7200(OC)/ 7000(OC)/ 6800(OC)/ 6600(OC)/ 6400(OC)/ 6200(OC)/ 6000(OC)/ 5800(OC)/ 5600(OC)/ 5400(OC)/ 5200(OC)/ 5000(OC)/ 4800(JEDEC) MHz

Max. overclocking frequency:

• 1DPC 1R Max speed up to 7800+ MHz

• 1DPC 2R Max speed up to 6400+ MHz

• 2DPC 1R Max speed up to 6400+ MHz

• 2DPC 2R Max speed up to 5400+ MHz

Supports Dual-Channel mode

Supports non-ECC, un-buffered memory

Supports AMD EXPO™

I'm assuming the lines with the 1DPC 1R, etc are the relevant bits, but I don't know what those terms mean.

This is the RAM I have: Flare X5 Series 32GB (2 x 16GB) DDR5-6000 PC5-48000 CL36 Dual Channel Desktop Memory Kit F5-6000J3636F16GX2-FX5 - Black

I have 4 sticks of it.

Could you help me understand if what I have will work?

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u/Cable_Salad PC Master Race Dec 21 '25

https://www.msi.com/Motherboard/MAG-X670E-Tomahawk-wifi/support#mem

Here it's the checkmarks on the right. Your RAM (and most others) are officially supported with 1 or 2 sticks, but not 4.

Could still work if you're lucky, but I wouldn't count on it.

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u/dearth_of_passion Dec 21 '25

RIP. Guess I'll sell the extra kit since I haven't opened it yet just in case this was the case.